If I add iCloud storage and want to include another family member. How do I transfer the other persons stored information.?
What do you mean by "transfer the other persons stored information"? You don't transfer any of their information when using a shared iCloud storage with Family Sharing.
Share an iCloud storage plan with your family - Apple Support
They can use the shared iCloud storage (200GB or 2TB) to backup their device.
we currently have two separate ICloud accounts. So if I go up to the family shared plan will the stores information still be available?
What "stores information"?
Sorry the stored information on the iCloud account
What specific stored information or data are you hoping to see from the other individual's account?
if I upgrade the other person’s iPhone will be backed up to the new shared account? If that is what will happen, then I may have the answer.
iCloud family sharing storage plan
